gettyimages has the pics for the event ; it seems Nancy is instead of Haya

__________________His Majesty King Hussein Bin Talal was my role model all my life, loved him so much, may God bless his soul, and paradise will be his final destinationHis soul was too great to be contained by the camera's lens ,yet his images radiate his love for his family , his faith , his pride on his country and people the world over who shared his commitment to peace and his joy in life . Queen Noor

gettyimages has the pics for the event ; it seems Nancy is instead of Haya

I doubt a asinger will replace a royal at an event.
Maybe Haya didnt attened for some reason, there is no news of her attending nor pictures of her but there is of the event.
We will just have to wait before making our own conclusions on why she didnt turn up and asking for pictures when there is ismply no pictures out yet.

__________________His Majesty King Hussein Bin Talal was my role model all my life, loved him so much, may God bless his soul, and paradise will be his final destinationHis soul was too great to be contained by the camera's lens ,yet his images radiate his love for his family , his faith , his pride on his country and people the world over who shared his commitment to peace and his joy in life . Queen Noor

It's nice to see Sheikh Mohammed's daughter with Princess Haya. It's not always you get a glimpse of the girls with her. It's also quite nice to see them taking part in an event that is attended and hosted by Princess Haya. Sheikha Maitha has been training of for so long (if you look at her instagram timeline) for the polo match. It seems to be her new sport/hobby.

HRH Princess Haya Bint Al Hussein kisses HH Sheikha Maitha during the presentations on the final day of the Cartier International Dubai Polo Challenge 10th edition at Desert Palm Hotel on February 21, 2015 in Dubai, United Arab Emirates. The event takes place under the patronage of HRH Princess Haya Bint Al Hussein, Wife of HH Sheikh Mohammed Bin Rashid Al Maktoum, Vice-President and Prime Minister of the UAE and Ruler of Dubai. The Cartier International Dubai Polo Challenge is one of the most prestigious happenings in Dubai's sporting and social calendar. On this occasion Cartier launched their latest watch creation Cle De Cartier.